7423231 has 2 divisors, whose sum is σ = 7423232. Its totient is φ = 7423230.

The previous prime is 7423211. The next prime is 7423249. The reversal of 7423231 is 1323247.

It is a strong prime.

It is an emirp because it is prime and its reverse (1323247) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7423231 - 2⁷ = 7423103 is a prime.

It is a super-2 number, since 2×7423231² = 110208716958722, which contains 22 as substring.

It is equal to p₅₀₃₄₂₈ and since 7423231 and 503428 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7423211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3711615 + 3711616.

It is an arithmetic number, because the mean of its divisors is an integer number (3711616).

Almost surely, 2^7423231 is an apocalyptic number.

7423231 is a deficient number, since it is larger than the sum of its proper divisors (1).

7423231 is an equidigital number, since it uses as much as digits as its factorization.

7423231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 22.

The square root of 7423231 is about 2724.5606985347. The cubic root of 7423231 is about 195.0732225563.

Adding to 7423231 its reverse (1323247), we get a palindrome (8746478).

The spelling of 7423231 in words is "seven million, four hundred twenty-three thousand, two hundred thirty-one".